Delidded Core i7 7700K runs 26 Degrees C cooler

There have been several leaks already indicating that upcoming Kaby Lake processors CAN get quite warm. So some of you already have delidding in mind. Well, look no further as it's been done already and it has a massive effect on cooling performance, 26 Degrees C actually.

Benchmarker RichUK delidded a Core i7 7700K and was able to achieve that result. For his testing he tweaked the processor towards 1.344 Volts with the ability to run 5.0 GHz. In default status he reached 90ºC, when he delidded the CPU and replaced the stock thermal insulation material, he reached 66º on the hottest core. Now I newed to state that i am not sure if the guy used the same cooler before and afterwards with that Kraken 62 as it is a little unclear from his story.

This i7 7700K was benchmarked on a Z170 motherboard using an NZXT Kraken X62. The stress software was Prime95 with the CPU clocked at 5GHz, with the CPU temperatures shooting up to 90+ degrees after a few seconds of use when using Intel's stock TIM (Thermal Interface Material).

#5371919 Posted on: 12/16/2016 06:40 PM
This is your chance people. YOU can send a message to Intel and the motherboard mfg and not buy Kaby. Wait for Zen and see how it measures up. This isn't fanboy talk, it is consumer advocacy. If you think I sound like a AMD fanboy, read my comment history.

Regarding Kaby Lake - I don't justify Intel's choice of TIM, but it shows what a huge potential lies in their CPUs, so if they really need, they will instantly release something which will trump ZEN.

Kaarme
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#5371931 Posted on: 12/16/2016 07:00 PM
Either that individual CPU was flawed or the years of no competition have degraded the Intel folks into utter incompetents.

huilun02
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#5371932 Posted on: 12/16/2016 07:01 PM
The genius who came up with this result used an old 6 pipe Thermalright air cooler before delidding. And then used Coollab Liquid Ultra with a Kraken X62 afterwards.

5Ghz with some random air cooler, great idea!

Link to the Anandtech thread

reeven
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#5371934 Posted on: 12/16/2016 07:02 PM
i do not care of this i7, i want ZEN. After ZEN we will see 300$ i7 8/16 core...till then i will not update to an intel quad core in 2017. Its octacore time.

icedman
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#5371940 Posted on: 12/16/2016 07:12 PM
I bet after zen's release they start soldering and giving better performance across the board. The only reason they did this in he first place is it's the only way to make more other than increase prices they already have the entire market.

Enticles
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#5371947 Posted on: 12/16/2016 07:21 PM
there is absolutely no way that a simple TIM change between the die and IHS reduces temps by 26c. Something else is going on here that has caused an exaggeration of the results.

It would be ludicrous to think that Intel would change their TIM to a significantly lesser quality TIM in just 1 architectural update. LinusTechTips did a de-lid & test video on a 6700k and found it dropped their temps by less than 5c overall. those results are fabricated.

#5371961 Posted on: 12/16/2016 07:37 PM
Wasn't there similar results with Ivy? When I had my 3570k I read delidding had a pretty big affect, but as I suffer from MS it wasn't something I could safely do.

Edit:

Temps in my 3770k dropped by around 10 degrees after my de-lid.

Ah OK that answers my question, so nowhere near the same.

Matt26LFC
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#5371963 Posted on: 12/16/2016 07:47 PM
there is absolutely no way that a simple TIM change between the die and IHS reduces temps by 26c. Something else is going on here that has caused an exaggeration of the results.

It would be ludicrous to think that Intel would change their TIM to a significantly lesser quality TIM in just 1 architectural update. LinusTechTips did a de-lid & test video on a 6700k and found it dropped their temps by less than 5c overall. those results are fabricated.

When I delid my 3570K I saw a temp reduction of 23C These kinds of results are possible.

He also used an old Heatsink on the 7700K then after the delid he used a very good aio cooler on, so his results are skewed a bit, however it is possible to get great temp reductions with a delid.

Think I also saw a 12C temp reduction on my 4770K under single stage, not sure about air, never really used this CPU on air much before I delid it.

Denial
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#5371964 Posted on: 12/16/2016 07:48 PM

Wasn't there similar results with Ivy? When I had my 3570k I read delidding had a pretty big affect, but as I suffer from MS it wasn't something I could safely do.

26 seems really high - I got 14c off my 3770K and I completely removed the IHS.

Also want to point out that the quality of the TIM has little to do with the temps being lower. It's the gap caused by the glue that holds the IHS down.

Brasky
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#5371966 Posted on: 12/16/2016 07:48 PM
If that's true it is completely unacceptable on the part of Intel... just lazy engineering.

Regarding Kaby Lake - I don't justify Intel's choice of TIM, but it shows what a huge potential lies in their CPUs, so if they really need, they will instantly release something which will trump ZEN.
See below:

(Also fanboyism kills the joy of everything).

The genius who came up with this result used an old 6 pipe Thermalright air cooler before delidding. And then used Coollab Liquid Ultra with a Kraken X62 afterwards.

5Ghz with some random air cooler, great idea!

Link to the Anandtech thread

RealNC
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#5371969 Posted on: 12/16/2016 07:55 PM
How do you prevent the Sandy Bridge "disaster" from happening again? You prevent people from overclocking by making your chip cook itself. People will then be forced to buy the same CPU with just a slight refresh every year.

Thank you Intel for caring about your customers. We will be remembering this.